Gabriel was born and raised in Toronto, Canada. He is currently Third Horn of the Toronto Symphony Orchestra, a position he has held since 2002. Prior to joining the TSO, Gabriel was Associate Principal Horn of the Winnipeg Symphony Orchestra.

Over the course of his career, Gabriel has played with many orchestras, including several guest appearances and Carnegie Hall performances with the Boston Symphony Orchestra and Les Violons du Roy. He has also played with the National Arts Centre Orchestra, the Kirov Orchestra, l’Orchestre Symphonique de Quebec, and many others.

Recent chamber music highlights include commissioning and performing “Chaconne” for Horn, Oboe and Piano by Toronto composer Erik Ross, a solo appearance with the Evergreen Gamelan Ensemble, and performances of the Brahms Trio, the Reinecke Trio, and the Schubert Octet.

Gabriel is a devoted teacher who currently coaches a full studio of students at the University of Toronto, and is a member of the faculty at the National Youth Orchestra of Canada. He has given lectures and masterclasses at the University of Lethbridge, University of Toronto, Glenn Gould Professional School, University of Manitoba, and others. Gabriel has also spent several summers teaching in the Masterclass programme at the Banff Centre for the Arts. In 2011, Gabriel was honoured to adjudicate auditions for the first-ever YouTube Symphony Orchestra. In July 2012, he was awarded the Queen Elizabeth II Diamond Jubilee Medal for his work fundraising, mentoring, coaching, and teaching at the National Youth Orchestra of Canada.

Gabriel is married to, and has two children with, Sarah Jeffrey, Principal Oboist of the Toronto Symphony Orchestra.